OpiumPapaverMorphineAlkaloidsHeroin DependenceTyrosine DecarboxylaseThebainePeronosporaBerberine AlkaloidsBenzylisoquinolinesNoscapineMorphine DerivativesNarcoticsCoptisBenzophenanthridinesMorphine DependenceErgot AlkaloidsDopa DecarboxylaseCodeineMorphinansOpioid-Related DisordersPlants, MedicinalAnalgesics, OpioidEschscholziaIsoquinolinesIndole AlkaloidsNaloxoneThalictrumPyrrolizidine AlkaloidsVinca AlkaloidsBotrytisLatexOpiate AlkaloidsCinchona AlkaloidsMethadoneReceptors, Opioid, muDrug ToleranceReceptors, OpioidOxidoreductases, N-DemethylatingPlant ProteinsSubstance Withdrawal SyndromeNarcotic AntagonistsGenes, PlantSubstance Abuse DetectionHeroinGene Expression Regulation, PlantAmaryllidaceae AlkaloidsNaltrexoneBuprenorphine